Hint for 2nd yellow key in the dungeons

[Semi-Native]

Hmmm, I had 2 yellows and 2 blues (I played last night up to the point of entering the dungeons). So the key is somewhere before you reach the dungeons, but I can't remember exactly where.

If I get time, I'll try to play through again so I can help you out. In the meantime, you might want to start over, at least from the last save, to see if you can find it.